Vulnerability-Lookup

CNVD-2024-01395

Vulnerability from cnvd - Published: 2024-01-10

Title

Siemens SIMATIC CN 4100使用默认凭证漏洞

Description

SIMATIC CN 4100是一个通信节点，可以连接第三方系统。 Siemens SIMATIC CN 4100存在使用默认凭证漏洞，攻击者可利用该漏洞使用凭据获取对受影响设备的完全控制。

Severity

高

Patch Name

Siemens SIMATIC CN 4100使用默认凭证漏洞的补丁

Patch Description

SIMATIC CN 4100是一个通信节点，可以连接第三方系统。 Siemens SIMATIC CN 4100存在使用默认凭证漏洞，攻击者可利用该漏洞使用凭据获取对受影响设备的完全控制。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://cert-portal.siemens.com/productcert/html/ssa-777015.html

Reference

https://cert-portal.siemens.com/productcert/html/ssa-777015.html

Impacted products

Name
Siemens SIMATIC CN 4100 <2.7

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2023-49621"
    }
  },
  "description": "SIMATIC CN 4100\u662f\u4e00\u4e2a\u901a\u4fe1\u8282\u70b9\uff0c\u53ef\u4ee5\u8fde\u63a5\u7b2c\u4e09\u65b9\u7cfb\u7edf\u3002\n\nSiemens SIMATIC CN 4100\u5b58\u5728\u4f7f\u7528\u9ed8\u8ba4\u51ed\u8bc1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u7528\u51ed\u636e\u83b7\u53d6\u5bf9\u53d7\u5f71\u54cd\u8bbe\u5907\u7684\u5b8c\u5168\u63a7\u5236\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://cert-portal.siemens.com/productcert/html/ssa-777015.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2024-01395",
  "openTime": "2024-01-10",
  "patchDescription": "SIMATIC CN 4100\u662f\u4e00\u4e2a\u901a\u4fe1\u8282\u70b9\uff0c\u53ef\u4ee5\u8fde\u63a5\u7b2c\u4e09\u65b9\u7cfb\u7edf\u3002\r\n\r\nSiemens SIMATIC CN 4100\u5b58\u5728\u4f7f\u7528\u9ed8\u8ba4\u51ed\u8bc1\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4f7f\u7528\u51ed\u636e\u83b7\u53d6\u5bf9\u53d7\u5f71\u54cd\u8bbe\u5907\u7684\u5b8c\u5168\u63a7\u5236\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Siemens SIMATIC CN 4100\u4f7f\u7528\u9ed8\u8ba4\u51ed\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Siemens SIMATIC CN 4100 \u003c2.7"
  },
  "referenceLink": "https://cert-portal.siemens.com/productcert/html/ssa-777015.html",
  "serverity": "\u9ad8",
  "submitTime": "2024-01-10",
  "title": "Siemens SIMATIC CN 4100\u4f7f\u7528\u9ed8\u8ba4\u51ed\u8bc1\u6f0f\u6d1e"
}

CVE-2023-49621 (GCVE-0-2023-49621)

Vulnerability from cvelistv5 – Published: 2024-01-09 10:00 – Updated: 2025-06-17 20:39

Summary

A vulnerability has been identified in SIMATIC CN 4100 (All versions < V2.7). The "intermediate installation" system state of the affected application uses default credential with admin privileges. An attacker could use the credentials to gain complete control of the affected device.

Severity

9.8 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-01-23 05:01 UTC

CWE

CWE-1392 - Use of Default Credentials

Assigner

siemens icscert root

References

1 reference

URL	Tags
https://cert-portal.siemens.com/productcert/pdf/s…

Impacted products

1 product

Vendor	Product	Version
Siemens	SIMATIC CN 4100	Affected: All versions < V2.7

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-02T22:01:25.852Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_transferred"
            ],
            "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-777015.pdf"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2023-49621",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-01-23T05:01:44.085293Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-06-17T20:39:17.414Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "SIMATIC CN 4100",
          "vendor": "Siemens",
          "versions": [
            {
              "status": "affected",
              "version": "All versions \u003c V2.7"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability has been identified in SIMATIC CN 4100 (All versions \u003c V2.7). The \"intermediate installation\" system state of the affected application uses default credential with admin privileges. An attacker could use the credentials to gain complete control of the affected device."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1392",
              "description": "CWE-1392: Use of Default Credentials",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-01-09T10:00:11.770Z",
        "orgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
        "shortName": "siemens"
      },
      "references": [
        {
          "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-777015.pdf"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "cec7a2ec-15b4-4faf-bd53-b40f371f3a77",
    "assignerShortName": "siemens",
    "cveId": "CVE-2023-49621",
    "datePublished": "2024-01-09T10:00:11.770Z",
    "dateReserved": "2023-11-28T10:01:06.679Z",
    "dateUpdated": "2025-06-17T20:39:17.414Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.